I added it on the calculator and got 21/26
Answer:
See below;
Step-by-step explanation:
1 . Consider the step below;
![m< DCA = 90 degrees - Given ,\\m< ACB = 180 degrees - Straight < ,\\\\m< DCA + m< DCB = 180,\\m< DCB = 90 degrees,\\\\By Parts Whole Postulate - m< DCB = m< DCE + m< ECB,\\m< DCB = m< DCE + m< ECB,\\90 = 53 + g,\\Conclusion ; ( g = 37 degrees )](https://tex.z-dn.net/?f=m%3C%20DCA%20%3D%2090%20degrees%20-%20Given%20%2C%5C%5Cm%3C%20ACB%20%3D%20180%20degrees%20-%20Straight%20%3C%20%2C%5C%5C%5C%5Cm%3C%20DCA%20%2B%20m%3C%20DCB%20%3D%20180%2C%5C%5Cm%3C%20DCB%20%3D%2090%20degrees%2C%5C%5C%5C%5CBy%20Parts%20Whole%20Postulate%20-%20m%3C%20DCB%20%3D%20m%3C%20DCE%20%2B%20m%3C%20ECB%2C%5C%5Cm%3C%20DCB%20%3D%20m%3C%20DCE%20%2B%20m%3C%20ECB%2C%5C%5C90%20%3D%2053%20%2B%20g%2C%5C%5CConclusion%20%3B%20%28%20g%20%3D%2037%20degrees%20%29)
<em>Thus, Solution ; g = 37 degrees</em>
2 . Knowing that these circle are " circumscribed " in this rectangle so that they are perfectly aligned, considering the length of this rectangle to be 20 inches, let us determine the radius;
![Diameter Of 1 Circle - ( 20 inches ) / 4 = 5 inches,\\Radius of 1 Circle = ( 5 inches ) / 2 = 2.5 inches,\\\\Area of 1 Circle = \pi r^2 = \pi * ( 2.5 )^2 = 6.25\pi,\\Area of 4 Circles = 6.25\pi * 4 = 25\pi,\\Area of 4 Circles = Area of Shaded Region,\\\\Conclusion ; Area of Shaded Region = 25\pi](https://tex.z-dn.net/?f=Diameter%20Of%201%20Circle%20-%20%28%2020%20inches%20%29%20%2F%204%20%3D%205%20inches%2C%5C%5CRadius%20of%201%20Circle%20%3D%20%28%205%20inches%20%29%20%2F%202%20%3D%202.5%20inches%2C%5C%5C%5C%5CArea%20of%201%20Circle%20%3D%20%5Cpi%20r%5E2%20%3D%20%5Cpi%20%2A%20%28%202.5%20%29%5E2%20%3D%206.25%5Cpi%2C%5C%5CArea%20of%204%20Circles%20%3D%206.25%5Cpi%20%2A%204%20%3D%2025%5Cpi%2C%5C%5CArea%20of%204%20Circles%20%3D%20Area%20of%20Shaded%20Region%2C%5C%5C%5C%5CConclusion%20%3B%20Area%20of%20Shaded%20Region%20%3D%2025%5Cpi)
<em>Thus, Solution ; 25π</em>
3. Let us first consider the given, then solve for the value of a, b, e;
![Angles c + e - Vertical Angles,\\Angles a + c - Complementary,\\( a + c ) = 90,\\Angle c = 56 degrees,\\a + 56 = 90,\\Conclusion ; a = 34 degrees,\\\\](https://tex.z-dn.net/?f=Angles%20c%20%2B%20e%20-%20Vertical%20Angles%2C%5C%5CAngles%20a%20%2B%20c%20-%20Complementary%2C%5C%5C%28%20a%20%2B%20c%20%29%20%3D%2090%2C%5C%5CAngle%20c%20%3D%2056%20degrees%2C%5C%5Ca%20%2B%2056%20%3D%2090%2C%5C%5CConclusion%20%3B%20a%20%3D%2034%20degrees%2C%5C%5C%5C%5C)
![m< e = m< c,\\Conclusion ; e = 56 degrees](https://tex.z-dn.net/?f=m%3C%20e%20%3D%20m%3C%20c%2C%5C%5CConclusion%20%3B%20e%20%3D%2056%20degrees)
![m< e + m< a + m< b = 180 - Straight Line,\\56 + 34 + m< b = 180,\\m< b = 180 - 56 - 34,\\Conclusion ; b = 90 degrees](https://tex.z-dn.net/?f=m%3C%20e%20%2B%20m%3C%20a%20%2B%20m%3C%20b%20%3D%20180%20-%20Straight%20Line%2C%5C%5C56%20%2B%2034%20%2B%20m%3C%20b%20%3D%20180%2C%5C%5Cm%3C%20b%20%3D%20180%20-%2056%20-%2034%2C%5C%5CConclusion%20%3B%20b%20%3D%2090%20degrees)
<em>Solution; a = 34°, b = 90°, e = 56°</em>
1 mile is 5,280 ft, and 1 second has 1,000,000 microseconds.
So 186,000 miles per second multiplied by 5,280 feet per mile gives 982,080,000 feet per second.
Dividing this value by 1,000,000 microseconds per second gives the final answer of 982.08 feet per microsecond.